Talks & Meetings
The British Science Association's Reading branch runs Cafe Scientifique meetings. (It is also listed on the University of Reading website. Scientific topics are covered at a level approachable by the lay person. The format is a talk of about 3/4 hour by an invited speaker, followed, after a short break, with questions from the audience. There are also Cafe Scientifiques in Basingstoke, Didcot, Henley-on-Thames, Oxford and Winchester
Skeptics in the Pub
Reading Skeptics in the Pub has talks, generally monthly, on topics covering science, comminication of science and critical thinking. The format is a talk of about 3/4 hour by an invited speaker, followed, after a short break, with questions from the audience. They are free but donations are solicited.
The Reading Skeptics website contains additional material but is no longer actively maintained.
There is also a Facebook page which lists coming events as well as itemss of general scientific/skeptical interest (also snark).